Adjustable pattern former



J. KLAKOVICH ADJUSTABLE PATTERN FORMER Feb. 12,1952

3 Sheets-Sheet 2 Filed D80. 17, 1948 IN VEN TOR.

JOSEPH KLA/(OV/CH L L M 8 RDY ELE L N HC E O EGW B l n Z mwR NE un a HR Du M Feb. 12, 1952 J. KLAKOVICH 2,585,135

ADJUSTABLE PATTERN FORMER Filed Dec. 17, 1948 3 SheetsSheei 3 a INVENTOR.

JOSEPH KLA/(OV/CH HUE'BNER, BEEHLER, WORREL, HERZIG e CALDWELL,

BY 2 g; 5 ATTORNEYS.

Patented Feb. 12, 1952 UNITED STATE EPA? ENT OFF ICE ADJUSTABLE PATTERN FORMER Joseph Klakovich, San Pedro, Calif. ApplicationDecember 17, 1948, Serial No. 65,884 6 Claims. (Cl. 33-26) :1 "Thisinventionrelates pattern projecting and formingdevices, and more particularly to a new-and improved adjustable template apparatus .having means-for-proiecting and scribing a pattern of desired configuration.

Frequently in sheet .metal work and the like it is necessary to formia vent or other conduit between two connections having different shaped openings, either in straight-line or offset relationship to'one another. Thus, it may be required to form .a sheet metal conduit between a square, rectangular, ,or oblong openingor the like .andanother. opening of like configuration .in 0&- .set relationship. tov the first, or to an, outlet for opening of difierent configuration than the ,first, which mayagain be .inc'fiset or straight-line relationship thereto.

Heretofore,v it. hasflusually been necessary to laboriously calculate and lay out a prescribed pattern for forming .the desired ,duct from measurements takenatthe job. Frequently the job is located some distance ,from a .shop or ,layout space or access between such areas is .difiicult or obstructed.

It is therefore among thecbjects .of this invention to provide a new and improved adjustable template or pattern former of relative compactness and light weight having features of adaptability and ready replaceability of parts, and which is accuratein operation and in use.

It is another object of-theinvention .to provide an apparatus of the .desired character described which .is susceptible of economic mass production and whose parts are readily adjustable .and secure. in their adjusted positions.

Another object of theinvention is the provision of a new and improved pattern forming apparatus having .a pluralityrof unidueand replaceable measuring and scribing means.

. Another further object .of theinvention is to provide. a means whereby patterns of complex nature maybe directly taken .irom .a site of proposed installation or from measurements and readily transposed to a sheet material or the like for direct fabrication. I

Another .further object of the invention is the provision in an instrument of the desired character described of .a new .and improved ex sible means -for projecting required plane conflgurations.

"Yet another object of the invention is to provide simple, :readily replaceable, and easily ad- 'jus'tablepmeans for obtaining critical measure- .ments o'fspaced openings, offsetor not, or at any angle with respect to one another, to and from which it "is desired-toobtain a pattern.

ment, and combination of the various parts of the device whereby the objects contemplated are attained, as hereinafter .set forth, pointed out in the appended claims, and illustrated in-the accompanying drawings, wherein:

Figure 1 is a vertical elevational view, parts being cut away, of an apparatus embodying this invention.

Figure 2 is a sectional view as on a line 2-2 of Figure-1.

Figure 3 is a sectional view .as on a line 3-3 of the apparatus illustrated in Figure '1.

Figure 4 is an enlarged sectional view as on .a line 4-4 of Figure 3.

Figure 5 is a detailed view of base members comprising .a portion of the optional pattern shaping ends of the apparatus as shown, among other places, in Figure 4.

Figure 6 is a perspective view of the apparatus illustrating a method of its use.

Figure 7 is a vertical elevational view as of the upper end of the apparatus illustrated in Figure l, but showing an optional pattern shaping member substituted thereon.

Figure 8 is a fragmental end of the apparatus of Figure '1 but with longer, tubular, and finger elements substituted thereon. Referring more particularly to the drawings, an apparatus there illustrated, by way of example and not of limitation, preferably comprises an arm till including an outer sleeve H and an inner rod 12 longitudinally slidable in telescoping relationship therewith. A slot i4 formed in the upper end of the sleeve it permits the end It of the sleeve to be pinched on the rod I'Z-in any desired degree of "extension of the latter. A clamp !5 having a threaded leg 5'! engage- .able with a female threaded ear i8 acts through a shoulder l9 engageable with another ear 2Bso that upon tightening of the handle 2|, the rod 52 and sleeve H may beheld against relative axial movement.

view as of the lower The upper end of the rod l2 may be formed as with a yoke 2|, the opposite legs 22 and 23 of which are pinchable together as by a knurled bolt 24 having a threaded end 25 engageable with corresponding female threads in the leg 22. The bolt 24 may be formed with a shoulder 26 cooperable with the thread 25.

A tongue 28 is formed with a transverse opening 29 through which the threaded end 25 is slidable. Its opposite end forms a threaded bolt 30 which may carry a nut 3|, washers 32, and a wing nut or the like 33 in a manner to replaceably hold a disc 35 of any desired diameter. The tongue 28 is firmly and non-rotatably clampable within the yoke 2| by tightening of the bolt 24.

The disc 35 is replaceable upon the bolt 30 by removal of the wing nut 33 and has an opening 36 through which the bolt 30 is slidable.

At its lower end the sleeve I may carry a corresponding yoke 4|), the lugs 4| and 42 of which are designed to be clamped upon another tongue 3 43 by means of a knurled bolt 44 having a shoulder 45 and a threaded connection 46 with the leg 42 in a similar manner to the yoke 2 I.

The tongue 43 may be threaded as at 41 and may be provided with a head 48 extending through openings 49 and 50 in the base or hub members 5| and 52. The head 48 may nest within a corresponding recess 53 formed in the base member 52. A nut 54 provided with a han-. dle 55 may be tightened thereby upon the threads 41 to clamp adjacent cut-out surfaces 56 and 51 of the members 5| and 52 together to prevent relative rotative movement of said members.

The base members 5| and 52 may thus be formed with shoulder portions 58 having any mutually abutting surfaces as 59 formed thereon to limit relative rotation of the parts 5| and 52 to an arc of 90 or other desired angle, i. e., preferably from a position of operative parallelism to one at right angles to one another as will be set forth.

Portions of the hubs 5| and 52 present curved surfaces 60 and 6| confronting corresponding sides of the shoulders 53 in preferred slidable relationship thereto. 7

The ends 62 of the members 5| and 52 are preferably formed with threaded counterbores as at 63 in opposite directions to accommodate thread-- ed ends 64 of sleeves 65. A bore 66 extends in wardly from and co-axially with the threaded counterbore 63 whereby replaceable fingers 61 may be slidably and extensibly disposed therein and in the bore 68 of said coupling 65.

Tubular elements 18 preferably having a female threaded end 1| and a male threaded end 12 may be threadedly engaged with the corresponding threads 15 of the coupling within a lock nut or chuck 16. The fingers 61 beinglikewise slidably'extensible through the tubular elements 1!) and the chucks 16, are clampable by these two latter portions. Thus, slots 11 formed on the male threaded end of the tubular elements 10, in optional spaced parallel circumferential relationship to one another, clamp the finger elements 61 upon the tightening of the chuck 16, thereby limiting to any desired extent the amount of axial extension of the finger members from the chuck, tubular coupling 10, and bore 66 as heretofore set forth. 7

The fingers 61 may be formed with an axial bore 18 threaded as at 19 for the reception of shanks 80 of replaceable tips 8| provided as with pointed scribing and measuring ends 82. Knurled surfaces 83 and 84 may be provided upon the tubular elements 10 and the chuck 16 to facilitate manipulation.

Use of the above-described apparatus may be made as follows: Assuming an opening (not shown) from which a sheet metal conduit is to be led and which opening conforms to the diameter of the disc 35, said disc (or another substituted in its place in order to correspond as closely as need be to the opening in question), is positioned therein. Assume further a lower opening (not shown) to which the conduit from the first mentioned opening is to be led is rectangular in shape and axially oifset from the first opening in question.

The bolt 24 may be loosened permitting the yoke 2| and tongue 28 to be given an angular relationship as illustrated, by way of example, in dotted outline in Figure 1, and is thereupon tightened to retain such angular relationship. The arm ||J may be made to correspond to the distance between the openings by extension of the arm ID, by loosening of the handle l6 and then tightening the same to prevent relative axial elongation or other movement of the arm III.

A corresponding bolt 44 or the like controlling the yoke 40 and tongue 43 may be loosened to permit a corresponding relative offset in the associated parts whereby the lower end of the apparatus may be made to correspond to any angular or parallel aspect of the square opening referred to relative to said round one.

The nut 54 may be loosened by the handle 55 permitting rotation of the members 5| and 52 upon the bolt 85 until the points 82 upon the respective fingers 61 are aligned with the corners of the opening. The nut 55 may be tightened to prevent relative movement of the members 5| and 52. The chucks 16 maybe loosened to permit extension of the fingers 61 until the points 82 are disposed in the corners of said opening. Thereupon, the chucks I6 may be tightened or one or more fingers and associated tubular elements of different length substituted as required.

The apparatus as above described has now assumed the position of a true template conforming in offset longitudinal distance, size and relative angularity to the projected plane surfaces of the openings between which the desired connection is to be made.

The template, having first been properly positioned and set, is next laid upon a sheet of any desired material 90. A center line 9| may then be drawn midway between adjacent points 82 which latter are preferably forceably impressed in said material.

The disc 35 may be marked off in degrees as by any lines 92. In any event, a mark as at 93 may be made upon the material at the point of tangency of the edge 94 of the disc 35 with said material, and a line 95 may then, or subsequently, be drawn between said mark 93 and another mark 96 halfway between points 82 on line 9|. The line thus drawn will correspond with one end of a portion, as one-half, of the desired pattern.

The apparatus isthen rolled in either a clockwise or counter-clockwise direction on the axis thereof to any extent desired, but preferably for one-,half a revolution and the corresponding points of rest of any of the points sequentially marked or impressed upon the sheet 98.

The edge of the disc which is thereby caused to roll simultaneously upon the sheet 90' is scribed uponfisaidsheet Eeithen byifirmly pressing thedisc down against thematerial to maketan impression-thereon or by continuously tracing path-as with a scribe on-pencil.

..-It willthus be apparent that uponce ple- -;tion of, say, one-half a complete revolution of -:the apparatus, as by rollingthe same,.=1it -w ill pattern which, will corresponddn plane: outline with the desired planertor 'fi-attened pattern of a required conduit. The material 90 may then be cut, preferably in halves corresponding to the half-pattern projected by half a revolution of the apparatus, and upon being cut and formed by rolling, creasing and joining of adjacent edges, will conform accurately to a desired con-' duit which will accurately connect said first and second openings.

It will be seen that the cross-shaped base members and their extensible arms and tips may be disposed relative to one another at any angle so as to conform to a rectangular orifice as well as to a square. It is also apparent that one of the fingers may be removed or others may be added in a manner which will be apparent to one skilled in the art so that an opening of any polygonal or even circular aspect may be accurately reproduced whether by the discs or by the fingers, and if need be, interchangeably.

Manifestly, by suitable selection of discs 35 which are replaceable for said purpose, any diameter opening may be matched and selected and corresponding discs may be removably secured to the apparatus as by means of the wing nut 33 shown or the like.

Tubular elements like ill can, of course, be substituted in various lengths as witness the replaceable and adjustable sleeve 98 and finger es of Figure 8.

This invention features an apparatus for projecting in plane outline a pattern for forming a conduit or the like between spaced openings, thereby accomplishing Within a relatively short time, as a few minutes, a task heretofore frequently requiring several hours, or which was not susceptible of successful accomplishment by per sons not skilled in pattern projection, geometry, allied. arts or not otherwise skilled and experienced.

While I have herein shown and described my invention in what I have conceived to be the most practical and preferred method and embodiment, it is recognized that departures may be made therefrom within the scope of my invention, which is not to be limited to the details disclosed herein but is to be accorded the full scope of the claims so as to embrace any and all equivalent devices.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A pattern former comprising a longitudinally adjustable supporting arm, pattern shaping members replaceably secured on said arm at longitudinally spaced points and extending laterally therefrom defining a plane transverse to the axis of said arm, and means associated with said arm and shaping members for establishing and maintaining a desired degree of angularity between said arm and said members, said pattern shaping members comprising a pair of radially disposed base members pivotally connected for angular adjustment relative to one another 6 pheadatris :co-iincident withithez' axis of saict am, said base'memberslhaving threaded .end portions, (individual tubular elements" having threads;.zfor .engagementtzwithz :saidrend portions; individual ifingers designedatb telescope with respective-tubular: .elements, and chuck elements .on: :said itubular elements to hold said fingers .inaa-cselected pdsitib'n-iof extensioril irom said tubular elements.

2. A pattern former comprising a longitudinally adjustable supporting arm, pattern shaping :members .replaceably secured. on'saidv arm at longitudinally spaced points andextendinglaterally therefrom defining a plane transverse to the axis of said arm, and means associated with said arm and shaping members for establishing and maintaining a desired degree of angularity be tween said arm and said members, said pattern shaping members comprising a pair of radially disposed base members pivotally connected for angular adjustment relative to one another on an axis co-incident with the axis of said arm, said base members having threaded end portions, individual replaceable tubular elements having threads for engagement with said end portions, individual replaceable fingers designed to telescope with respective tubular elements, and chuck elements on, said tubular elements to hold said fingers in a selected position of extension from said tubular elements.

3. A pattern former comprising a longitudinally adjustable supporting arm, pattern shaping members at least one of which is substantially X-shaped replaceably secured on said arm at longitudinally spaced points and extending laterally therefrom defining a plane transverse to the axis of said arm, and means associated with said arm and shaping members for establishing and maintaining a desired degree of angularity between said arm and said members, said X-shaped pattern shaping members comprising oppositely directed pairs of laterally extensible fingers angularly adjustable relative to each other on a common central pintle within said plane to establish selected points of a plane figure.

4. A pattern former as characterized in claim 3, each of said pattern shaping members having a central unthreaded opening, said supporting arms having an end extending loosely through said opening, abutment means at the outer end of the supporting arm, and a clamping means threadably engageable with the supporting arm, spaced inwardly therefrom and designed for selectively clamping the pattern shaping member between said clamping means and said abutment for holding the pattern shaping member in a desided position of rotative adjustment.

5. A pattern former as characterized in claim 4 in which one pattern shaping member is substantially disk-shaped.

6. A pattern former comprising a longitudinally adjustable supporting arm, pattern shaping members replaceably secured on said arm at longitudinally spaced. points and extending laterally therefrom defining a plane transverse to the axis of said arm, and. means associated with said arm and shaping members for establishing and maintaining a desired degree of angularity between said arm and said members, said pattern shaping members comprising oppositely directed pairs of laterally extensible fingers angularly adjustable relative to each other within said plane to establish selected points of a plane figure, and replaceable scribing tips secured in the ends of said fingers, said pattern shaping members including cross members having adjacent complementary recesses formed therein in nested relationship to one another and the sides of said recesses being spaced relative to one another to limit relative rotation of said members to 90, sides of said cross members forming abutments for retaining said members in a, desired parallel relationship.

a JOSEPH KLAKOVICH.

REFERENCES CITED The following references are of record in the file of this patent:

8 UNITED STATES PATENTS Number 10 Number Name Date Roth Dec. 8, 1908 Hogge May 3, 1910 Fales Jan. 29, 1924 Woods Nov. 18, 1947 Hooser Feb. 8, 1949 FOREIGN PATENTS Country Date Germany Jan. 18, 1922 Great Britain Mar. 31, 1944 

